Tianjin Yuantai Derun wholesale erw black round steel welded pipe Manufacturer
With an annual output of 15 million tons, Yuantai Derun is the largest ERW square pipe,
rectangular pipe,
hollow pipe,
galvanized pipe and
spiral welded pipe manufacturer in China. Annual sales reached $5 billion. Yuantai Derun has 59 black ERW pipe production lines, 10 galvanized pipe production lines ，3 spiral welded pipe production lines，1 JCOE
LSAW steel pipe production line. Square pipe 10 * 10 * 0.5mm to 1000 * 1000 * 60MM, rectangular steel pipe 10 * 15 * 0.5mm to 800 * 1100 * 60MM, spiral pipe Ø 219-1420mm can be made of yield strength from Q (s) 195 MPa to Q (s) 690 MPa.Yuantai Derun can produce square rectangular tubes according to ASTM A500/A501,JIS G3466,EN10219,EN10210,BV,DIN2240 and AS1163,GB/T9711,GB/T3091,GB/T3094,GB/T6728 etc, and our mill were certified by BC1,EPD,PHD,ISO9001,ISO14001,ISO45001. Yuantai Derun has the largest steel pipe inventory in China, which can meet the urgent purchasing demand of customers. Welcome everyone to contact Yuantai Derun,And visit our factory online or offline.
Erw Tube Manufacturing Process
ERW black round steel welded pipe Manufacturer
ERW high-frequency welded pipe is a hot-rolled coil formed by a forming machine, which uses the skin effect and proximity effect of high-frequency current to heat and melt the edge of the tube blank, and then carries out pressure welding under the action of extrusion rollers to achieve production. It is mainly used for conveying low-pressure fluids such as water, sewage,air, heating steam and other purpose.
ERW materials construction steel pipe standard specification：
|
out diameter
|
Wall thickness
|
Length
|
|
Inch
|
mm
|
mm
|
meter
|
|
1/2
|
21.3mm
|
0.6mm-3.0mm
|
0.3m-12m
|
|
3/4
|
26.9mm
|
0.6mm-3.0mm
|
0.3m-12m
|
|
1
|
33.4mm
|
1.0mm-3.0mm
|
0.3m-12m
|
|
1-1/4
|
42.3mm
|
1.0mm-4.0mm
|
0.3m-12m
|
|
1-1/2
|
48.3mm
|
1.0mm-4.0mm
|
0.3m-12m
|
|
2
|
60.3mm
|
1.5mm-4.0mm
|
0.3m-12m
|
|
2-1/2
|
76.1mm
|
1.5mm-4.0mm
|
0.3m-12m
|
|
3
|
88.9mm
|
1.5mm-9.5mm
|
0.3m-12m
|
|
4
|
114.3mm
|
2.0mm-9.5mm
|
0.3m-12m
|
|
5
|
141.3mm
|
3.0mm-9.5mm
|
0.3m-12m
|
|
6
|
168.3mm
|
3.0mm-12.0mm
|
1.0m-12m
|
|
8
|
219.1mm
|
3.2mm-12.0mm
|
1.0m-12m
|
|
10
|
273mm
|
3.2mm-12.0mm
|
1.0m-12m
|
|
12
|
323.8mm
|
6.0mm-15.0mm
|
1.0m-12m
|
|
14
|
355.6mm
|
8.0mm-15.0mm
|
1.0m-12m
|
|
16
|
406.4mm
|
8.0mm-20.0mm
|
1.0m-12m
|
|
18
|
457.2mm
|
8.0mm-20.0mm
|
1.0m-12m
|
|
20
|
508.0mm
|
8.0mm-20.0mm
|
1.0m-12m
|
|
22
|
558.8mm
|
8.0mm-20.0mm
|
1.0m-12m
|
|
24
|
609.6mm
|
8.0mm-20.0mm
|
1.0m-24m
|
Company Profile
Professional supply of construction project orders
Tianjin Yuantai Derun is the largest manufacturer of ERW square rectangular pipes, hollow pipes, galvanized pipes, and spiral welded pipes in China. It is also one of the top 500 private enterprises and manufacturing enterprises in China. The company has an annual production capacity of 10 million tons and owns over 100 steel pipe production lines and more than 100 steel hollow section technology patents. The production types include ERW. LSAW, HFW, SSAW, seamless, hot-rolled, cold drawn, hot worked, etc
THE QUALIFIED RATE OF PRODUCTS >100%
Q1: Are you trading company or manufacturer ?
A: We are factory.
Q2: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 30 days if the goods are not in stock, it is according to quantity.
Q3:Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge with the cost of freight paid by customer.
Q4: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD 30% T/T in advance ,balance before shippment.If you have another question, pls feel free to contact us as below